[PATCH v2 7/8] mdio_bus: Change PHY's naming scheme

Sascha Hauer s.hauer at pengutronix.de
Wed Feb 3 23:47:31 PST 2016


Hi Andrey,

On Wed, Feb 03, 2016 at 11:23:38AM -0800, Andrey Smirnov wrote:
> On Tue, Feb 2, 2016 at 11:36 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> > On Sun, Jan 31, 2016 at 07:10:12PM -0800, Andrey Smirnov wrote:
> >> Change the way PHY devices are named upon creation. This commit replaces
> >> sequentialy numbered "/dev/phy%d" with "/dev/mdio%d-phy%02x". This way
> >> it is significanlty easier to identify which PHY in real-life (e.g. on a
> >> schematic) corresponds to which device in /dev.
> >>
> >> Also, replace asprintf with xasprintf to provide some form of memory
> >> allocation failure checking.
> >>
> >> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
> >> ---
> >>  drivers/net/phy/mdio_bus.c | 4 +++-
> >>  1 file changed, 3 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
> >> index b74b27e..41bf018 100644
> >> --- a/drivers/net/phy/mdio_bus.c
> >> +++ b/drivers/net/phy/mdio_bus.c
> >> @@ -333,7 +333,9 @@ static int mdio_bus_probe(struct device_d *_dev)
> >>       dev_add_param_int_ro(&dev->dev, "phy_addr", dev->addr, "%d");
> >>       dev_add_param_int_ro(&dev->dev, "phy_id", dev->phy_id, "0x%08x");
> >>
> >> -     dev->cdev.name = asprintf("phy%d", _dev->id);
> >> +     dev->cdev.name = xasprintf("mdio%d-phy%02x",
> >> +                                dev->bus->dev.id,
> >> +                                dev->addr);
> >
> > While at it we can change the phy device name in the same way to be
> > consistent:
> 
> Yeah, I agree, let's do this. Let me know if I should do v3 patch set.

I'll squash that here as necessary.

Sascha

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